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Minecraft Java 1.21 Mods

Browse 21 free mods for Minecraft Java 1.21 — popular picks include Mob AI Tweaks, KEO RPG optimized, [ Spellnomia ] - Iron's Spells 'n Spellbooks magic modpack .

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Mob AI Tweaks
1.21.11fabric

Mob AI Tweaks

Tweaks certain mob AIs, major or minor. Reworks the Wither and Ender Dragon boss fights!

1.4Mdownloads
KEO RPG optimized
1.21.1neoforge

KEO RPG optimized

Keo RPG is a fully Spanish, highly optimized modpack with over 200 mods that lets you rediscover Minecraft with freedom, RPG classes, magic, and epic bosses.

226kdownloads
[ Spellnomia ] -  Iron's Spells 'n Spellbooks magic modpack
1.21.11neoforge

[ Spellnomia ] - Iron's Spells 'n Spellbooks magic modpack

Master arcane mana and alchemy in this RPG adventure with Iron's Spells, mages, wizards, dragons, bosses, and grimoires. Explore dungeons, dungons, and biomes with opti performance, shaders, and immersive medieval fantasy sorcellerie

32kdownloads
Mythic Horizonss
1.21.11fabric

Mythic Horizonss

An epic RPG & Adventure modpack for Fabric! Features overhauled combat, massive boss fights, breathtaking new biomes, and maximum FPS optimization.

28kdownloads
Moar Bosses
1.21.9

Moar Bosses

Moar Bosses adds 7 types of randomly spawning bosses into your Minecraft world. Each boss has 3-5 unique and crazy magical attacks, and drop cores that can be used to craft magic wands. The bosses have custom textures using Optifine or Reselect or CET.

8.3kdownloads
Antique Runes: Medieval RPG
1.21.1neoforge

Antique Runes: Medieval RPG

Get ready for a unique Medieval RPG modpack, featuring many new armors & tools. And also features, such as leveling, bosses, quests, dungeons and many more!

6.4kdownloads
Cobblemon Origins Modpack
1.21.1fabric

Cobblemon Origins Modpack

The best Cobblemon Modpack for performance, aesthetic and QOL features that you'll ever see. The server includes Raids, Ranked, Bosses, Player Gyms, Breeding, Cosmetics and so much more custom features!

3.7kdownloads
DragonForge
1.21.1neoforge

DragonForge

Dragon Forge is a RPG–survival with skill-gated gear, Create-powered industry, mythic bosses & dungeons, and lush worldgen. 200+ content mods + 90+ perf/QoL. Built for multiplayer on MysticHorizonsMC.

1.8kdownloads
Explorisa
1.21.1neoforge

Explorisa

This modpack is centered around becoming stronger as you explore new structures, biomes, and even whole new dimensions, all the while defeating strong bosses, in a medieval/fantasy rpg setting.

727downloads
X Journey
1.21fabric

X Journey

Dive into TX-Journey, where survival meets adventure, all with the classic vanilla feel. Build, craft, and explore a world filled with mysteries, from daily tasks to epic boss battles. Upgrade your enchantments and uncover endless possibilities.

588downloads
Pixeltheris
1.21.1neoforge

Pixeltheris

Epic RPG Modpack 1.21 – explore dungeons, master magic, face challenging bosses, build and decorate, and enjoy enhanced combat, progression, and quality-of-life features. Optimized for multiplayer and private servers.

334downloads
Mine RPG
1.21.1fabric

Mine RPG

This is combination of mods to add more content to Minecraft including bosses, biomes, creatures. This is more RPG adventure style while keeping all vanilla. No extra metals or materials are added on this pack.

318downloads
Grandia Dungeons [Modpack]
1.21.1neoforge

Grandia Dungeons [Modpack]

A dark fantasy dungeon roguelike modpack with bosses, classes, cursed loot, magic, custom UI and atmospheric progression.

269downloads
SmartRestart
1.21

SmartRestart

Schedule server restarts and stops with a single command — every player sees a live countdown BossBar in exact minutes and seconds with dynamic color warnings and sounds.

168downloads
Pepegwoh 2 Now In Colors
1.21.1neoforge

Pepegwoh 2 Now In Colors

Jump into a world filled with things to explore and magic to uncover. Can you defeat the bosses?

148downloads
Accurate Craft
1.21.1neoforge

Accurate Craft

A performance-focused Minecraft modpack featuring enhanced visuals, quality-of-life improvements, new structures, epic boss fights, and expanded building possibilities.

91downloads
Antique Odyssey
1.21.1neoforge

Antique Odyssey

A progression-focused adventure modpack where ancient magic, powerful relics and mechanical engineering shape your journey. Explore a world filled with dangerous bosses, forgotten ruins, powerful spells and intricate machinery.

83downloads
P
1.21.1neoforge

Project: Goliath

Many bosses and adventures with magic, iron's spells, create, create: aeronautics and L_Enders_Cataclysm. This modpack was made for a server I'm starting by the same name.

356downloads
A
1.21.1neoforge

Aoura MC

Adds vanilla improvements bosses' new biomes terrain etc.

312downloads
Evergrow
1.21.1neoforge

Evergrow

A brutal high-end adventure modpack packed with tons of new mobs, bosses, weapons and dimensions – heavily optimized and balanced for powerful PCs.

817downloads
KEO RPG Optimized Modpack (1.21.1) – Defeat Bosses To Unlock Progression
1.21.1

KEO RPG Optimized Modpack (1.21.1) – Defeat Bosses To Unlock Progression

KEO RPG Optimized Modpack turns your world into a massive role-playing adventure with about 300 mods that run smoothly on your computer. You get to choose your own path with fun character classes, magic spells, and a huge skill tree to unlock. The game makes every part of Minecraft better, from farming and fishing to […]